Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d1e0bc034cdb3c0…

MALICIOUS

PDF

35.8 KB Created: 2021-06-20 07:00:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9b55fdfc6b4f1c389fae59e5b38205cc SHA-1: 96a206a97a2e1640e19ef25d540b568ea24c5f21 SHA-256: 4d1e0bc034cdb3c05126725310c6496dfeae1d25d1ef2b35eb8d29b230b6e9c4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirector infrastructure, specifically advertising 'free generator / game hack' lures. The primary malicious URL identified is http://netcdn.co/app/431946152/welcome-to-farmtown-hacks-roblox-game-hack. This indicates a social engineering tactic to trick users into visiting potentially harmful sites, likely for further malware delivery or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/431946152/welcome-to-farmtown-hacks-roblox-game-hack In PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/minecraft-texture-packs-free-download_GM479516143.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/minecraft-116-free_GM479516143.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/rxgate-cf-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/coin-master-free-spins-2021-ios_GM406889139.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/roblox-hack-free-2021_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/roblox-walls-hack_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/robux-earner_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/wurst-client_GM479516143.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/links-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/coin-master-free-link-2021_GM406889139.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/free-robux-kid-friendly-no-human-verification_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/best-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/roblox-cheats-for-money-2021_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/hacks-in-roblox-booga-booga_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/dailyrobux_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/do-you-get-free-robux-roblox_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/how-to-hack-a-person-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31C7 23000 bytes
SHA-256: 328adb2544ecde93f259ea7fb12733916eee7f7a8ab63e1a29bb3c270cd3cf8c
font_01_sfnt_off00006568.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6568 19544 bytes
SHA-256: 8a6d1c368bcf974b6d1a550cb06ea34bc7fba8d8c4757d443c064f3f1fea4045

Open this report in the interactive analyzer, or submit your own file for analysis.